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Enhancing Nuclear Safety


Research

Research units

Explosion and Fire Laboratory (LIE)

 
The Explosion and Fire Laboratory (LIE) is situated at Cadarache, in the Bouches du Rhône (southern France). It is headed by Jean-Marc Ricaud.
 

Summary

 

 

 

Context and research themes

 

The laboratory’s role is, on the one hand, to improve the understanding of fire and associated phenomena, particularly fires concerning nuclear facitilies, and on the other hand, to produce methods and associated tools to support the development and use of mathematical software.

One of the laboratory’s activities is the production, improvement and validation of mathematical fire simulation software, based on the interpretation of the results of experiments obtained mostly as part of the programmes conducted by the IRSN. In this respect, the LIE plays an important role in the specification and interpretation of experimental programmes. Two software simulating fire behaviour in installations consisting of several ventilated rooms are developed: Sylvia (simplified approach) and Isis (detailed 3-D modelling of physical phenomena).

 

 

Research axes

 

The LIE also supports the laboratories of the IRSN in terms of: 

  • Development of mathematical methods for solving partial derivative equations (PDE) related to the physics of transfers (mathematical fluid mechanics, incompressible or slightly compressible flows). 
  • Modelling of uncertainties. 
  • Sensitivity analysis (multivariate analysis, construction of response surfaces). 
  • Software engineering (object-oriented software design for scientific calculations). 
  • Data analysis (development of tools for processing experimental data and signals).

 

In this field, the LIE is developing the following softwares:

  • the Pelicans library of software components for solving partial derivative equations
  • the Sunset code for uncertainty and sensitivity analysis.

 

 

Specialties and researchers

 

    The LIE has acquired skills in the following areas: 

    • thermal processes (conduction, convection and radiation), 
    • fluid mechanics of flows of turbulent and reactive gases, 
    • transport and sedimentation of aerosols, 
    • combustion (turbulent diffusion of flames), organic fuels (solids, liquids).

 

List of researchers and engineers:

Jean-Marc Ricaud, head of laboratory

Fabrice Babik, research engineer

Germain Boyer, engineer

Frédéric Debert, engineer

Fabien Duval, engineer

Marc Forestier, engineer

Élodie Garnier, engineer

Laura Gastaldo, engineer

Dionysios Grapsas, engineer

Matthieu Jobelin, engineer

Jean-Paul Joret, engineer

François Lamare, engineer

Céline Lapuerta-Blanc, engineer

William Plumecocq, engineer

Anthony Maire, engineer

Nicolas Nace, engineer

Maxime Ndiolene, engineer

Philippe Querre, engineer

Khaled Saleh, engineer

Sylvain Suard, engineer

Nicolas Therme, PhD student

Samuel Vaux, engineer 

 

 

Facilities and techniques

 

The following tools are available at Limsi: 

  • Scientific calculation tools for simulating fires, developed in the laboratory itself: · IsisSylvia
  • Scientific calculation programs developed to assist other IRSN laboratories in various research domains:
    - near-field atmospheric dispersion: Artic,
    - pollutant dispersion in rivers: Gabian,
    - corium-concrete interaction: Promise and Topase.
  • Software tools developed in the laboratory itself:
    - Pelicans, Promise, 
    - Sunset.

 

 

Partnership and research networks

 

The LIE collaborates with organisation such as Ineris, Inria and various Universities (Universities of Aix Marseille, Poitiers, Edinburgh...).


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Publications

Contact

 
IRSN/PSN-RES/SA2I
Explosion and Fire Laboratory
BP 3
13115 Saint Paul Lez Durance cedex
France
 
By phone : +33 (0)4 42 19 92 22

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